A weaker weight condition for the John–Nirenberg implication

Let vv be a weight on the unit disk and let pp be the parameter appearing in Proposition 1. Assume that the function xv(1x)x1pϵx\mapsto v(1-x)x^{\frac{1}{p}-\epsilon} is almost increasing for some ϵ>0\epsilon>0. The weaker-weight conjecture. This assumption can be replaced by the milder condition

infx(0,1)v(x)>0.\inf_{x\in (0,1)}v(x)>0.

The proposed replacement would weaken the hypotheses of the proposition and potentially extend its John–Nirenberg-type conclusion to a broader class of weights.

Sources & referencesView supporting material

Primary source

David Norrbo, “Compactness and related properties of weighted composition operators on weighted BMOA spaces”, arXiv:2502.05533 (2025).

Progress summary

Never refreshed

Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.

Solutions 0

No solutions have been posted yet.